I would be happy to help! You do not need to change your hubs to upgrade from 14" wheels to 15" wheels, you will just need to make sure your trailer has enough clearance to fit the larger tires that are used on 15" wheels. The Westlake…
Hello Jorge, thanks for reaching out. The etrailer Electric Trailer Jack #e55ZV should work great on your 1979 Airstream Excella 500. It uses a standard bolt pattern (3" apart on center) so as long as you can confirm this matches the current…
There really should be a flat washer between the outer bearing of your hub and the nut that holds it on. The washer protects the back side of the bearing from the edges and points on the back side of the spindle nut. The Washer For 1 inch Spindle,…
Hey Theo, The only difference between #119251 and #119250KIT is that the #119250KIT comes with a circuit tester included. In my opinion, installation will be pretty difficult without the tester , and it happens to be the cheaper one. I recommend…
For your application, I can absolutely give you the wiring function locations. I've attached a picture to assist. Based on what you mentioned, I think I have a better option for you. I recommend the Epicord 7-Way Molded Trailer Plug with Junction…
Just like the tires for your trailer, the combined load capacity of your wheels should at least match the loaded weight of your trailer. Ideally though they will have a larger combined capacity than your trailer weight to provide a nice safety…
With the Curt Triflex part #C24VV and the Curt Adapter part #C51522 you will have all you need to successfully install your controller. I have linked a video for you showing the operation of the controller. Check it out to familiarize yourself with…
Since your 2021 Audi Q7 has the factory tow package you do have a brake controller port but Redarc didn't make a specific plug and play adapter for it. There is a work around that will let you install your Redarc Tow Pro Liberty item #RED24FR or…
Your 2021 Audi Q7 is going to have a smart wiring system. For the Curt Echo #C51180 to function properly and receive power you will need to connect your trailer 7-way to the Echo once you plug into the connector on your Audi. The computer in your…
The Curt Echo Brake Controller part #C51180 is a great choice because of its convenient and simple installation. The 7-way connector that you mention part # A10-7084VP pugs into the 4-way connector you purchased part #C56217. The white wire from the…
Hey J, thanks for reaching out! I'm glad you were able to figure out the instructions for the ZCI Circuit Protected Vehicle Wiring Harness #119250KIT - most people get a bit overwhelmed. I unfortunately don't have a wiring diagram that shows…
